improve description

app.py

@@ -56,14 +56,21 @@ def process_pdfs(
     progress=gr.Progress(),
 ):
     if not pdf_files:
-        return None, None, "No PDF files uploaded."
+        return (
+            None,
+            None,
+            gr.Markdown(
+                "⚠️ No PDF files uploaded. Please upload at least one PDF file."
+            ),
+        )
 
     if oauth_token is None:
-        gr.Info("Please log in to upload to Hugging Face.")
         return (
             None,
             None,
-            "Not logged in to Hugging Face, please log in to upload to a Hugging Face dataset.",
+            gr.Markdown(
+                "⚠️ Not logged in to Hugging Face. Please log in to upload to a Hugging Face dataset."
+            ),
         )
 
     try:
@@ -71,6 +78,7 @@ def process_pdfs(
         images_dir = os.path.join(temp_dir, "images")
         os.makedirs(images_dir)
 
+        progress(0, desc="Starting PDF processing")
         images, message = pdf_to_images(pdf_files, sample_size, images_dir)
 
         # Create a zip file of the images
@@ -106,7 +114,10 @@ def process_pdfs(
 
 # Define the Gradio interface
 with gr.Blocks() as demo:
-    gr.Markdown("# PDF to Image Converter")
+    gr.HTML(
+        """<h1 style='text-align: center;'> PDFs to Page Images Converter</h1>
+        <center><i> &#128193; Convert PDFs to an image dataset &#128193; </i></center>"""
+    )
     gr.Markdown(
         "Upload PDF(s), convert pages to images, and optionally upload them to a Hugging Face repo. If a sample size is specified, random pages will be selected."
     )
@@ -121,17 +132,20 @@ with gr.Blocks() as demo:
     with gr.Row():
         sample_size = gr.Number(
             value=None,
-            label="Number of sample pages (0 will return all pages)",
+            label="Pages per PDF (0 for all pages)",
+            info="Specify how many pages to convert from each PDF. Use 0 to convert all pages.",
         )
         hf_repo = gr.Textbox(
-            label="Hugging Face Repo", placeholder="username/repo-name"
+            label="Hugging Face Repo",
+            placeholder="username/repo-name",
+            info="Enter the Hugging Face repository name in the format 'username/repo-name'",
         )
-
-    output_gallery = gr.Gallery(label="Converted Images")
+    with gr.Accordion("View converted images", open=False):
+        output_gallery = gr.Gallery(label="Converted Images")
     status_text = gr.Markdown(label="Status")
     download_button = gr.File(label="Download Converted Images")
 
-    submit_button = gr.Button("Process PDFs")
+    submit_button = gr.Button("Convert PDFs to page images")
     submit_button.click(
         process_pdfs,
         inputs=[pdf_files, sample_size, hf_repo],